P. Joseph Lehman, Inc., Consulting Engineers’ project expertise includes the design of foundations, retaining walls, and building framing. Our talented professionals are familiar and experienced with the properties and uses of materials such as concrete, steel, masonry, and timber. Their process is to conduct client consultations before final design approval of the project in order to fully understand the client’s needs and to recommend an approach that fits the anticipated end result, the desired schedule, and the client’s budget.